Diplosynapsis cellata ( Schiner, 1868 )

Vieira, Rodrigo & Rafael, José Albertino, 2016, Revision of Diplosynapsis Enderlein, 1914 (Diptera, Asilidae, Asilinae) with description of four new species, Zootaxa 4208 (2), pp. 127-148 : 128-135

Diplosynapsis cellata ( Schiner, 1868)

( Figs. 19–25 )

Erax cellatus Schiner, 1868: 181 ; Williston, 1891: 85; Kertész, 1909: 234. Nerax cellata ; Hull, 1962: 478.

Efferia cellatus ; Martin & Papavero, 1970: 64.

Diplosynapsis cellata ; Artigas & Papavero, 1997: 70. Diplosynapsis ? cellata ; Papavero, 2009: 17.

Diagnosis. Anepisternal setae black, moderately thicker on the superior region; three black notopleural macrosetae; no anatergal setae; 6 black apical scutellar setae; epandrium with a projection on ventral margin ( Fig. 20 ); female tergite 9 + 10 membranous medially.

Redescription. Male. Lectotype (by present designation). Head. Scape and pedicel black with apical margin brown, postpedicel black; ocellar setae thin, except for 4 thicker ones; vertex and frons black with sparse golden tomentum; face black, golden tomentose; mystax with black macrosetae and some yellow setae; palpus with yellow to brown setae; proboscis black with yellow ventral setae; labial setae yellowish; occiput black with sparse golden and grey tomentum; occipital setae black and yellow; black postocular macrosetae arranged in long row, starting from lateral half of head until region above eyes.

Thorax. Antepronotum and postpronotum golden tomentose; mesonotum dark brown, with presutural and prescutellar golden spot and golden lateral margins with yellow to brown tomentum; mesopleuron black, grey and golden tomentose. Chaetotaxy: black anepisternal, moderately thick on superior region of anepisternum; 3 black notopleural macrosetae; 3 black supra-alar setae; 2 black postalar setae; black pre and postsutural dorsocentral setae; no anatergal setae; 6 black apical scutellar setae; black discal scutellar setae; black katatergal setae and seta on meron+metanepisternal blackish.

Wing ( Figs. 22, 23 ). Light Brown, without costal dilation; crossvein r-m slightly beyond middle of discal cell; microtrichia on posterior wing margin arranged in single plane; halter yellow.

Legs. Black, except ventral region of tarsomeres brown ( Fig. 19 ). Chaetotaxy: fore femur with only black and yellow ventral setae; mid femur with three black setae anteriorly, 4 black setae anteroventrally, one row of black setae from base to apex posteroventrally and 3 yellow setae basally, and 1 black, apical macrosetae posterodorsally; hind femur with 4 black macrosetae anteriorly, one row of black macrosetae from base to apex antero and posteroventrally, 1 black preapical macroseta anterodorsally and another posterodorsally, 1 black apical macrosetae posterodorsally; fore tibia with 3 black macrosetae posteriorly; mid tibia with one row of black setae posteriorly; hind tibia with 7 black setae anterodorsally and 6–8 posterodorsally; tarsomeres with black setae. Abdomen. Tergites 2–4 brown with yellowish apex; basal 1/4 of tergite 5 brown and apical 3/4 with grey tomentum; tergites 6–8 with shining silvery tomentum ( Figs. 20, 22 ); lateral margin of tergites 2–5, golden tomentose; distal margin of sternite 8 without projections; sternites grey tomentose.

Terminalia ( Figs. 19, 20, 22 ). Black. Oblique to body axis. Epandrium divided proximally and halves approximated medially; epandrium with ventral projection ( Figs. 19, 20 ).

Length. Body 14.7 mm; wing 10.8 mm.

Lectotype condition. Left hind tarsomeres 2–5 missing; there are remnants of glue between the mid and hind trochanters and the pin.

Male paralectotypes body length: 14.4– 16 mm; wing 10.5– 11 mm.

Paralectotypes. Female: Similar to male, except for body length (14.6– 17 mm, wing 10.3–10.7 mm), brown tarsomeres, tergites 2–7 brown and apex and lateral margins, golden to brown tomentose; tergite 8 dark brown, long and slender ( Fig. 24 ). Tergite 9 + 10 membranous medially.

Distribution. Venezuela ( Fig. 75).

Comments. Diplosynapsis cellata has the typical wing ( Fig. 23 ) of the genus, and its dubious placement in Diplosynapsis by Papavero (2009) does not proceed. The lectotype and paralectotype were designated in this study ( Figs. 21 , 25 ). This specimen was labelled as the lectotype accordingly, to fix and stabilize the current concept of the name.

Type material examined. Lectotype. (by pres. desig.) Lindig 1864, VENEZUELA / cellatus Alte Sammlung (♂ NMW).

Paralectotype: same data as holotype (3♂, 3♀ NMW).

Figures

FIGURES 19 – 23. Diplosynapsis cellata (Schiner, 1868). Lectotype ♂. 19. Habitus, lateral view; 20. Male terminalia, lateral view; 21. Labels; 22. Habitus, dorsal view; 23. Wing.

FIGURES 24 – 25. Diplosynapsis cellata (Schiner, 1868). Paralectotype ♀. 24. Habitus male, lateral view; 25. Labels.